“After being injected with a 75 percent solution of the yellow, oily substance, seven of the other eight mole rat species licked or shook their paws in discomfort. The highvelds, though, didn’t even flinch. So the researchers upped the dose, giving them pure AITC. (The lab member in charge of these injections, Karlein Debus, had to wear a gas mask.) ‘They had no reaction whatsoever,’ said Dr. Lewin. ‘That was astonishing.'” Researchers hope to learn ways to limit human pain by studying critters who feel none. NYT: Mole Rats Felt No Pain, Even From Wasabi’s Burn.